Axle-box lid



(No Model.) I

N. H. DAVIS.-

' AXLE BOX LID.

' No. 562,588. Patented June 23, 1.896.

Witnesses.

ANDREW EGRA'HAM. PHOTOU'MQWASNINQSTVIL D C I UNITED STATES PATENTOFFICE.

NATHAN H. DAVIS, OF PHILADELPHIA, PENNSYLVANIA.

AXLE-BOX LID SPECIFICATION forming part of Letters Patent No. 562,588,dated June 23, 1896.

I Application filed March 14, 1896. Serial No. 583,212. (No model.)

To all whom it may concern.-

Be it known that I, NATHAN H. DAVIS, a citizen of the United States,residing in the city and county of Philadelphia, in the State ofPennsylvania, have invented a certain new and useful Improvement inAxle-Box Lids, of which the following is a true and exact description,reference being had to the accompanying drawings, which form a part ofthe specification.

My invention relates toaxle-box lids such as are used as covers to theaxle-boxes of railway-cars, and my object is to provide a lid of novelconstruction, and especially one adapted to be engaged with the springby which it is held in a closed or open position in a novel and improvedmanner. I

The nature of my improvements will be best understood as described inconnection with the drawings in which they are illustrated, and in whichFigure 1 is a perspective View of the top or outer side of my improvedlid. Fig. 2 is a central longitudinal section through the lid; Fig. 3, aplan view of the inside or face of the lid; and Figs. 4:, 5, and 6,cross-sectional views taken on the section-lines 1, 2, and 3 of Figs. 2and 3.

A indicates the axle-box lid,which, as shown, and as I prefer toconstruct it, is made of a plate of iron or steel stamped to the desiredform.

A indicates the flat inner face of the lid, which comes in contact withthe rim surrounding the opening in the axle-box.

A is a strengthening-rib thrown up from the back of the plate.

, A is what is known as the hood, which, in the top of the lidillustrated in the drawings, extends over the projection at the top ofthe axle-box, to which projection the lid is hinged.

A is a recess formed or stamped on the inside of the lid and in whichrecess the spring indicated at B is situated. This recess A in myconstruction extends to the lower end of the box-lid, and from that endupward to a point indicated at A need be only a sufficient depth toinsure that its walls will hold the spring in position. From the point Aupward the recess is deepened, as indicated at a, for the purpose ofaffording free play to theupper end of the spring B, the deepened recessof merging into the hood A as indicated best in Figs. 1 and 2.

A A indicate the hinge-eyes formed on each side of the hood A hood A isindicated at B, while at B I have indicated the point on the springwhere it leaves contact with the bottom of the groove A that is to say,the point on the spring which registers with the point A of the lid.

The spring is secured in place simply by engaging its lower end B with ahooked end A of the lid-plate. of the spring rests against the bottom ofthe hook A but obviously the bent end of the spring may be somewhatshorter, in which case the actual contact would be between the extremeend of the hook A and a point on the body of the spring above the hook BThe end B of the spring is, as is well understood, pressed upward whenthe spring is hinged to the box, this pressure being transmitted to thepoint A on the lid, which serves as a fulcrum, while the engagement ofthe hooked end of the spring with the hooked end of the lid serves as ananchorage.

By my construction I am enabled to use a spring of maximum length, and Isecure also not only the resiliency of the spring-plate between theupper end of the spring and the point B but also the resilience of thespringplate between the point B and the hooked end of the spring, thispart of the spring having the capacity to bow outward to a slight butuseful extent.

It will also be observed that by my construction there is no perforationin the face of the lid nor is it necessary to provide an anchorage forthe spring by bolting or riveting some anchoring device to the lid, asis usually the case.

It is a distinct advantage in my lid that the groove A involves instamped metal the formation of a corrugation in the lid extending Asshown, the bent end.

to its lower end, as this corrugation stiffens and strengthens the lidagainst the blows or jerks incident to opening it.

While I prefer to form the end A of the lid in the form of a hook, asshown at A it will suffice in some cases to simply form or bend itdownwardly and inwardly, so as to afford a rest for the straight end ofa spring-plate, relying upon friction to anchor the spring in placelongitudinally.

Having now described my invention, what I claim as new, and desire tosecure byLetters Patent, is-

1. An axle-box lid having a recess A formed on its inner face to receivea spring said recess being deepened toward its upper end in order togive play to the spring and extended to the extreme lower end of thelid, said boxlid having also at its extreme lower end a downwardly andinwardly extending projection formed integral with the lid and adaptedto project over the end of recess A and to engage the end of aspring-plate lying in said recess A.

2. An axle-box lid having a recess A formed on its inner face to receivea spring said recess being deepened toward its upper end in order togive play to the spring and extended to the extreme lower end of thelid,said boxlid having also at its extreme lower end a hook-like projectionA formed integral with the lid and adapted to project over the end ofrecess A and to engage a hooked end on a spring-plate lying in recess A3. An axle-box lid having a recess A formed on its inner face to receivea spring, said recess being deepened toward its upper end in order togive play to the spring, said box-lid having also at its lower end ahook-like projection A adapted to engage a hooked end on a spring-platelying in recess A in combination with a spring B having a hooked end B4. An axle-box lid formed of struck-up wrought metal having a recess Aformed by a corrugation of the metal of the lid and deepening toward theupper end of the box-lid and a hooked lip A formed on the lower end ofthe lid and integral therewith.

NATHAN H. DAVIS.

\Vitnesses:

CHARLES E ZIEGLER, D. STEWART.

